How to overhaul the brake master cylinder on 2002 Chevrolet Express 2500?

Question

Accepted Answer

First, to overhaul the Brake Master Cylinder, remove it from the vehicle by mounting the flange in the bench vise and make sure the rear of the primary Piston is exposed. Clean the outside of the master cylinder reservoir around the cap before removing the cap and diaphragm and then inspect the components for cuts, cracks, nicks or deformation and replace any damaged components. Then, seize off the master cylinder reservoir and utilize smooth, round--ended apparatus to compress the primary Piston and remove the Piston retainer with the primary Piston assembly from the cylinder bore. Pluggage the inlet ports of the cylinders and the rear outlet port, the low pressure, non-lubricated and filtered air should be blown in to the front output port to expel the secondary Piston in conjunction with the primary and secondary as a well as the return spring. Remove the primary Piston assembly, Piston retainer and secondary Piston seals. In assembling, clean the interior and exterior of the master cylinder, secondary Piston and return spring using a denatured alcohol or its equivalent, inspecting them for cracks, scoring, pitting, or corrosion, and re-assembling the master cylinder if it has any defects. Dry all components using non-lubricated, filtered air, and lubricate the master cylinder bore, secondary Piston, return spring, and all overhaul components using delco supreme 11, gm p/n 12377967 (Canadian P/N 992667), or an equivalent dot-3 brake fluid from a clean, sealed container. Mount the new primary seal and retainer that are lubricated as well as the new secondary seal on the secondary Piston, insert the lubricated return spring and secondary Piston assembly into the cylinder bore and place the lubricated new primary Piston assembly in its place. Use a round ended, smooth tool to press down the primary Piston and install a new Piston retainer and reattach the master cylinder reservoir and cap and diaphragm after which is installed is the master cylinder to the vehicle.

OEM 2002 Chevrolet Express 2500 Brake Master Cylinder

5 Brake Master Cylinders found

2002 Chevrolet Express 2500 Master Cylinder Assembly

2002 Chevrolet Express 2500 Master Cylinder Assembly

2002 Chevrolet Express 2500 Master Cylinder

2002 Chevrolet Express 2500 Master Cylinder

2002 Chevrolet Express 2500 Overhaul Kit

2002 Chevrolet Express 2500 Brake Master Cylinder

2002 Chevrolet Express 2500 Brake Master Cylinder Parts Questions & Experts Answers

Related 2002 Chevrolet Express 2500 Parts

Alternate Year Models